Taximeter.



W. G. BRUHN.

TAXIMETER.

APPLICATION FILED SEPT. 27, 1910.-

Patented Mar. 4, 1913.

2 SHEETS-SHEET 1.

82/27/26 Z772 Takn Z fivm-f mg W. G. BRUHN.

TAXIMETEK APPLIUATION FILED 531 121 1910.

1,054,903. Patented Ma r.4,1 913.

2 SHEETS-S HEET 2.

BEST aria-r core UNITED sra'rp s rrnnr orr'ice.

WILHELM GUSTAV BRUHN, OF BERLIN. GI ill'tlfIAlVY.

TAXIMETER.

Specification of Letters Patent.

Patented Mar. 4, 19

1' all whom it may conceive Be it, known that 'I,'VVILIIELM Gr s-rmBRUHN," a citizen of the German Empire, residing at Berlin, in theKingdom of Prussia, German Empire, have invented new and usefulImprovements in Taximetcrs. of

which the following is a specification.

'- combined indicating apparatus to be effected b one single slide;

The accompanying drawings show by 3 way of example a form vof apparatusconstructed in accordance with the invention.

Figure 1 is a front: elevation of the com- .bined indicating" apparatus.Fig. 2 is a similar View with the cover plate removedf Fig. 3is abottolniplanand liig.'-4.- is a, rear elevation. 7

The cover'plate-lzf is formed with two upperfand two lower apertures.The fare is exhibited behind the two upper apertures, bythe threenumeraldisks 2', Z, ant i lower apertures by thefthree disks l' and The extrasare indicated behindytheztwo' 0. The dishes 701 m n 0 are respectivelyfiziedion the spindles 73 7, m 21, 0. Upon the spmdtes it and 7c aresecured the ratchet wheels and y respectively. The feed or operation ofthe ratchet wheel .1: whereby the fare isiincreased by a. unit of price,for example 10" p fennige, is effected 'autonnitically in be known wayafter a given distance ha n traveled or after a given period of time haselapsed. The operation of the ratchet-wheel g whereby the extrasindicated are increased for example by units "of 25 pfen'nige ata time,is effected in the knownflvayb '.'a knob or other manually operabledevice (not shown) usuallysituated at the back of the app'aratusandturned by the driver.. The decnnal,transm ss on from the spindle i ofthe. first indicating disk! to thespindle l and from this spindle to thespindle m iseficcted in the known way by notched count-mg wheels, andthe decimal transmission from the spindle is to' the spindle n and fromthe latter to the spindle 0 similarlyefiferted.

way:The middle spindles and n are. adapted to slide axially so thatthenotched counting wheels of the right hand spindles i In comeout ofengagement with the rors responding notched counting wheels upon themiddle spindles Z and '21- i and the notched counting wheels on thespindles? and n come out of engagement with the notched counting wheelsupon the spindles m 0 The middle spindles Z and n are now to zero bymeans of heart shaped cams, while the left and right hand spindles aremoved back into the'zero or starting position by means of springs. Forthis purpose there is fixed on the left and right handspindlesi'espefctiwelyia toothed wheel m k 0*. Theset-ooth'ed wheelsgearrespectively with spring barrels M iv o. The spring barrels contain slipsprings, that is to say springs havingtheir innerend fixed to the axisof the barrel while their outer end rubs on the cylindrical wall ofthe'barrel; If such a spring rbtirrel is .turnedinthe direction in whichthe springis'coiled the spring will be taken around with it. owing tothe friction between the outer end'of the: spring-and'the wall of thebarrel, and the spring will therefore wind up. \Vhen this tensionattainsa certain amount, 'thespring will slip on the inside of the barrel inthe spring barrel is releasedit-will be rotated back by the spring untilthe latter is slack. The disks 1'. 1a,.ls, oQcarry respectively pins ifIn I and 0 which in the backward rotation of the disks under the actionof the spring barrels, strike againststops m k a. Thestops m3 and 0 arefixed, while the stops 1' audit? are formed (it-spring levers, which inthe forward feed of the disks '2' l. are moved aside by the pins 2 isand there fore allow their respective disks i It: to make anydesirednumber of revolutions, whereas they only allow their disks toturn backward until the pins 11* Zr" strike against the levers 1' b.Upon the middle spindles l Hitll't respectively fixed heart shaped alns'l ii. The. axial sliding of the middle spindles a middle zeroizing ofthe heart shaped cams; n is ctl'ected as follows. l'n setting theapparatus to the disengaged or inoperath-e position, a lever (Figs. 3and l) is turned ina directionm the arrow. This lever imparts its motionby a spring 44o a slide 1- continued turning of the latter. If themounted at the underside of'tlie apiiz'iratns; The slide r moves thecatch pawls no and 11 out of engagement with the ratchet Wheels.

m and 3 so that the isks a" and 7t: can be turned back into theirinitial positionby the spring barrels and 7:.

To the slide r is fined a wedge cross arm 9" which in the slidingmovement of the slide 7' passes under forks Z n which enga go in notchesin the spindles Z n respectively. Therefore the movement of the slide 7has the ciiiect of sliding the spindles Z "c". To the slide 7* isconnected a slide 3 prorided on the other or the bottom piste. Thisslide 8 has two noses s" and s which, when the slide is moved to wardthe right, engage in the heart shaped cams Z and n and set the same tozero. Owing to the fact that the lever 7:) which act-mates the slides rand s is not connected rigidly with the lever T but only through. themedium of the spring 9 the important acl vantage is attained that theprojections .9 and are allowed a certain time to reach the deepestportions 01 the heartshaped cams Z and n, and thatif a projection s or 8should happen to come exactly upon the point of the heart, shaped cam Zor n, so that further movement of the slides r and 8 toward the rightwould be prevented, no breakage of any part- Whatever could be thereforeoccasioned, and the only effect would be that the spring Q Would bestressed to a correspondingly greater extent. As however the slides 'rand s, owing to the intel-position of the spring 9, are not compelled tofollow the lever 72 at once, but can follow it during thelvv'hole of thetime in which the lever is moving toward the right, it will be seen thateven in no}: a case the zeroizing of the heart shaped cams Z and n wouldbe effected as a rule even if somewhat 'tardily.

If the eirparatus is put very quickly into the disengaged or inoperativep'osition, and is immediately thereafter pub very quickly into theengaged or operative position, it.

'may be possible under some circumstances owing to the rapid motion ofthe projections s and 8 toward the right that a very rapid rotation ofthe disks Z-and n will be produced. It, might occur thatin the returnmotion of the projections s and .9 the disks Z and n owing to theirmomentum, would retain the rotation imparted to them, and

thereby move away again from the zero position; In ordento prevent this,pins Z 01,

noes-ens right, he levers Z n are released more into their engagingposition. ii new in the further movement; of the slide e toward the ri'ht, the disks Z and are ti'irned to zero,

rotation, according to tlie previous 10 sition aside by the pins Z "/1and when. the .zen position of the disks I, a is sponding notches of the1 or I i one 5, cvent any ovcnrcnnlng oi the disks 6 2i. ills levers Zengagement by the, projections s and to release thedis Z and untii(liiQCtilT be fore the slide 8 returned to its left .1: -d position, andafter the decimalcounting into gear with the right and left hand counting Wheels.

ment just described for preventing running of the middle tlisl's 7 l o tgaged position and immediately the" autoriatically and that, accordingto tht sition' which the disks Z and it have a.-

position the return of the cl "1" to the zero position occurs in the oneor her tiirec r recti'ons of rotation, the levers Z n" are pushed asideby the pins Z? or 6 and come.

notches with the pins Z Ye when the disks have been moved to the zeroposition. This from. previously known arrangements wherein, for thepurpose of zeroizing, the

turned in the same direction, namely in the direction or feed, so thatit is necessary to ward and to "remove a etc before the disks can be fedforward again in further use I claim:

1. In an indicating apparatus for ta):-

niochanisms one for indicating the fares and 1 I I l I tine other rorindicating the extras, each of plurality of counting elementsoperativeiy connected with each other, ofa plate suping mechanisms forthe counting elements out both 0t said indicating mechanisms,actumechanisms comprising a sliding ban and means operated by said slidng bar for axn counting elements or' the indicating mechanisms.

ofthe disk Z or n', the levers Z n are moved reached in the pins Z n napinto the and n3 are not again lifted out 01 wheels of the spindles Z or92- have conic It should be noticed that the arroo one n 'Wm-n thetaximeter is set rapidly t:

to tbi: engaged position, operates sinned before the setting to thedisengaged of rotation; also that in each of t'h ti'ii o(liautomatically into engagement by their arrangement thereforerlifi'ers ssent-ially numeral or indicating disks must always be turnthe said disks shortdist-anceheals the counting mechanism.

imeters, the eombinationwith two indicating said indicating mechanismscomprising a.

porting both indicating. mechanisms, zeroinating means commonto all thezcroizing ally sliding disconnecting tbe gearing of the 2. in anindicating apparatus for taxwbich occ' in the one or other direction oi:

imeters, the combination with tWo indicating mechanisms one forindicating the fares and the second one .for indicating the ex- 'tras,each of said indicating mechanisms comprising three counting elementssucces sively connected wlth each-other, ot a plate supporting both ofsaid indicating n'iechanisms, automatic zeroizing mechanisms for theouter, ones of said counting elements, cam actuated zeroizing mechanismsfor themner ones of said counting elements, a slide adapted to shift theinner ones of the counting elements of both" indicating mechanismsaxially and out of engagement with the outer ones of Silld countingelements and to disconnect both indicating mechanisms from theiroperating devices, and means actuated ,by said sllde for operatlng saidcam actuated zeroi-zing mechanisms.

3. In' an indicating apparatus for -tax imeters, ,the combination withtwo indicating mechanisms one for indicating the fares and the secondone for indicating the. extras,

each of said indicating mechanisms comprising three counting elementssuccessively connected with each other, of a plate supporting both ofsaid indicatingmechanisms for the inner ones of said counting elements,a

spring actuated slide, a wedge attached to said slide adapted to shiftthe inner ones of the counting elements of both indicating mechanismsaxially and outof engagement with the outer ones of said countingelements and to disconnect both indicating mecha means actuated by saidslide for operating said cam actuated zeroizing mechanisms.

4. In an indicating apparatus for taxin:eters the combination With acounting element, of zeroizing means for said counting element adaptedto turn the same in either direction, means operative during thezeroizmg operatlon to arrest said counting element in its resetposition, said arresting means being operative upon rotation .of saidcounting elements in both directions, and means operative at the end ofthe zerolzlngoperation to throw said arresting means out of camconnected with said counting element and adapted to zeroize the same,operating means for said cam, and means connected. with said camoperating means and operative during the resetting in operation to throwsaid notched lever into operative position, and a spring to move thelever into operative posltlon.

In Witness whereof I have hereunto set my hand in presence of twoWitnesses. 4

WILHELM GUSTAV BRU I-IN,

itnesses HENRY HASPER, WOLDEMAR HAUPT.

